1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Aleksandr-060686 [28]
2 years ago
15

The sum of two numbers is 17 and their differance is 3

Mathematics
2 answers:
gavmur [86]2 years ago
6 0

The sum of two numbers is 17 and their difference is 3.

Let's define the two numbers as x and y.

Sum of two numbers is 17

x + y = 17

Their difference is 3

x - y = 3

-----------------------------------------

Solve for x

x + y = 17

x = 17 - y

now that we have x, substitued x into x - y = 3

x - y = 3

17 - y - y = 3

17 - 2y = 3

-2y = -14

y = 7

we have y, 7, now let's substitue that into one of the equations to find x

x - y = 3

x - 7 = 3

x -7 + 7 = 3 +7

x = 10

the numbers are 10 and 7

docker41 [41]2 years ago
3 0

Answer:

10 and 7 are the numbers

Step-by-step explanation:

Let the number be x and y, ATQ, x+y=17 and x-y=3, solving it we will get x=10 and y=7

You might be interested in
Can someone explain to me how to turn a fraction into a decimal..? And a decimal into a fraction? Be specific please! I have a t
cricket20 [7]
To turn a decimal into a fraction move the decimal point two spots over (Ex: 0.34=34%). To turn a fraction into a decimal get the denominator to 100 by multiplying both the top and bottom by whatever number needed (must both be multiplied by the same number) or divide to top number into the bottom number of you can’t multiply.
8 0
3 years ago
How do you write 0.9 as a percentage?
mamaluj [8]
0.9 as a percentage would be 0.9% it doesn't really change
7 0
2 years ago
104x1033..........................and also should i quit fortnite?
Dimas [21]

Answer:

yes you should its a waste of time and money

6 0
3 years ago
Read 2 more answers
Find the size of each of two samples (assume that they are of equal size) needed to estimate the difference between the proporti
hodyreva [135]

Answer:

The sample size n = 4225

Step-by-step explanation:

We will use maximum error formula = \frac{z_{a} S.D}{\sqrt{n} }

but we will find sample size "n"

\sqrt{n}  = \frac{z_{a} S.D}{maximum error}

Squaring on both sides , we get

n  = (\frac{z_{a} S.D}{maximum error})^2

Given 99% confidence interval (z value) = 2.56

given maximum error = 0.02

n  = (\frac{z_{a} p(1-p)}{maximum error})^2

n≤ (\frac{2.56X\frac{1}{2} }{0.02}) ^{2}    ( here S.D = p(1-p) ≤ 1/2

on simplification , we get n = 4225

<u>Conclusion</u>:

The sample size of two samples is  n = 4225

<u>verification</u>:-

We will use maximum error formula = \frac{z_{a} S.D}{\sqrt{n} } = \frac{2.56 1/2}{\ \sqrt{4225} }  = 0.0196

substitute all values and simplify we get maximum error is 0.02

4 0
3 years ago
PLEASE HELP ME!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!
Delicious77 [7]

Answer:

b

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • My question is type an equation for the following pattern.
    13·1 answer
  • Choose the correct classification of x^6 + 3x^3 by number of terms and by degree.
    5·1 answer
  • A basketball is shot into a 10ft. Goal from a height of 6.5 feet. The function h= -0.875t2 + 3.5t + 6.5 represents the path of t
    14·1 answer
  • Help please before its taken:)
    15·2 answers
  • Help please due now I only have 10 mins..Help please!!! I only have 10 mins!!!​
    5·1 answer
  • Which set of angle measures CANNOT be the angle measures of a triangle? 1. 60, 60, 61 2. 1, 1, 178 3. 13.9, 16.1, 150 4. 59, 60,
    6·1 answer
  • Please help me i really need help please help me please i really really need help please
    12·1 answer
  • 11. At Price Chopper you are purchasing groceries and the bill comes out to be
    8·1 answer
  • If you earned $1000 interest on a loan of $5200
    13·1 answer
  • Is a triangle with sides 7 feet, 12 feet, and 14 feet a right, acute or obtuse triangle?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!